Abstract: According to an exemplary embodiment of the present disclosure, a method for transforming a document with each of a plurality of file formats, performed by a computing device includes receiving a request for transforming a document with each of a plurality file formats into application model data having a structure or format which is available for an application for loading and storing the document; generating intermediate hierarchical data between the document with each of the plurality of file formats and the application model data, using the document with each of the plurality of file formats, in response to the received request; and transforming intermediate hierarchical data generated corresponding to each of the plurality of file formats into application model data corresponding to each of the plurality of file formats.

Abstract: In an exemplary embodiment, a method for managing a multimedia file related to a document is discloses. For instance, the method being performed by a first computing device. The method comprises, obtaining a multimedia file related to a document, generating character string data by encoding the multimedia file, generating a key value by encrypting the generated character string data, determining whether a key value equal to the generated key value exists in a pre-stored data table comprising a plurality of key values and character string data of the multimedia file corresponding to each key value, when the key value equal to the generated key value does not exist, storing the key value and the character string data in the data table by matching the generated key value and the generated character string data, and transmitting the multimedia file related to the document to the server so that server stores the multimedia file related to the document.

Abstract: According to an exemplary embodiment of the present disclosure, a method for transforming a document with each of a plurality of file formats, performed by a computing device includes receiving a request for transforming a document with each of a plurality file formats into application model data having a structure or format which is available for an application for loading and storing the document; generating intermediate hierarchical data between the document with each of the plurality of file formats and the application model data, using the document with each of the plurality of file formats, in response to the received request; and transforming intermediate hierarchical data generated corresponding to each of the plurality of file formats into application model data corresponding to each of the plurality of file formats.